examples/finitestrain.py

nelems=10 Number of elements along edge.
etype=square Type of elements (square/triangle/mixed).
btype=spline Type of basis function (std/spline).
degree=2 Polynomial degree.
poisson=.25 Poisson's ratio, nonnegative and stricly smaller than 1/2.
angle=20 Rotation angle for right clamp (degrees).
restol=1e-10 Newton tolerance.
trim=yes Create circular-shaped hole.

optimize

topology 1/2

integrating 1+1+1 distinct blocks

topology 2/2

integrating 1+2+2 distinct blocks

solve

solving 48 dof system to machine precision using direct solver

refinement iteration 1

residual increased to 3e-17 (discarding)

solver returned with residual 3e-17

constrained 48/288 dofs

optimum value 0.00e+00

optimize

topology 1/1

integrating 1+1+1 distinct blocks

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 1e-15

refinement iteration 2

residual decreased to 9e-16

refinement iteration 3

residual decreased to 9e-16

refinement iteration 4

residual increased to 9e-16 (discarding)

solver returned with residual 9e-16

optimum value 1.20e-01

linear.png

minimize

topology 1/1

integrating 1+1+1 distinct blocks

minimize 0%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 3e-16

refinement iteration 2

residual decreased to 3e-16

refinement iteration 3

residual decreased to 3e-16

refinement iteration 4

residual decreased to 3e-16

refinement iteration 5

residual decreased to 2e-16

refinement iteration 6

residual decreased to 2e-16

refinement iteration 7

residual increased to 2e-16 (discarding)

solver returned with residual 2e-16

spectrum: 4.7e-01..6.9e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -2.49e-02 / e+0.0 and decreasing

minimize 2%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 2e-16

refinement iteration 2

residual decreased to 2e-16

refinement iteration 3

residual decreased to 2e-16

refinement iteration 4

residual increased to 2e-16 (discarding)

solver returned with residual 2e-16

spectrum: 3.2e-01..2.5e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -2.87e-02 / e+0.5 and decreasing

minimize 5%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 2e-16

refinement iteration 2

residual decreased to 1e-16

refinement iteration 3

residual decreased to 1e-16

refinement iteration 4

residual decreased to 1e-16

refinement iteration 5

residual decreased to 1e-16

refinement iteration 6

residual decreased to 1e-16

refinement iteration 7

residual increased to 1e-16 (discarding)

solver returned with residual 1e-16

spectrum: 2.6e-01..4.6e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -7.49e-03 / e+1.0 and decreasing

minimize 6%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 1e-16

refinement iteration 2

residual decreased to 1e-16

refinement iteration 3

residual increased to 1e-16 (discarding)

solver returned with residual 1e-16

spectrum: 2.3e-01..6.6e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -4.21e-03 / e+1.5 and decreasing

minimize 7%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 1e-16

refinement iteration 2

residual decreased to 1e-16

refinement iteration 3

residual decreased to 9e-17

refinement iteration 4

residual decreased to 9e-17

refinement iteration 5

residual increased to 9e-17 (discarding)

solver returned with residual 9e-17

spectrum: 2.0e-01..6.5e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -3.64e-03 / e+2.0 and decreasing

minimize 9%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 8e-17

refinement iteration 2

residual decreased to 8e-17

refinement iteration 3

residual decreased to 8e-17

refinement iteration 4

residual increased to 8e-17 (discarding)

solver returned with residual 8e-17

spectrum: 1.8e-01..6.4e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -2.72e-03 / e+2.5 and decreasing

minimize 11%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 6e-17

refinement iteration 2

residual decreased to 5e-17

refinement iteration 3

residual increased to 6e-17 (discarding)

solver returned with residual 5e-17

spectrum: 1.6e-01..6.4e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -1.61e-03 / e+3.0 and decreasing

minimize 13%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 4e-17

refinement iteration 2

residual decreased to 4e-17

refinement iteration 3

residual decreased to 3e-17

refinement iteration 4

residual decreased to 3e-17

refinement iteration 5

residual increased to 4e-17 (discarding)

solver returned with residual 3e-17

spectrum: 1.4e-01..6.1e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -7.02e-04 / e+3.5 and decreasing

minimize 17%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 2e-17

refinement iteration 2

residual decreased to 1e-17

refinement iteration 3

residual increased to 2e-17 (discarding)

solver returned with residual 1e-17

spectrum: 1.1e-01..6.4e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -1.75e-04 / e+4.0 and decreasing

minimize 21%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 7e-18

refinement iteration 2

residual decreased to 6e-18

refinement iteration 3

residual decreased to 5e-18

refinement iteration 4

residual increased to 6e-18 (discarding)

solver returned with residual 5e-18

spectrum: 9.8e-02..6.1e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -2.57e-05 / e+4.5 and decreasing

minimize 28%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 1e-18

refinement iteration 2

residual decreased to 1e-18

refinement iteration 3

residual increased to 2e-18 (discarding)

solver returned with residual 1e-18

spectrum: 8.6e-02..6.4e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -1.37e-06 / e+5.0 and decreasing

minimize 37%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 2e-19

refinement iteration 2

residual decreased to 2e-19

refinement iteration 3

residual increased to 2e-19 (discarding)

solver returned with residual 2e-19

spectrum: 7.8e-02..6.2e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -2.42e-08 / e+5.5 and decreasing

minimize 51%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 8e-21

refinement iteration 2

residual decreased to 7e-21

refinement iteration 3

residual increased to 8e-21 (discarding)

solver returned with residual 7e-21

spectrum: 7.3e-02..6.5e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -4.29e-11 / e+6.0 and decreasing

minimize 72%

solve

solving 240 dof system to machine precision using direct solver

refinement iteration 1

residual decreased to 8e-23

refinement iteration 2

residual decreased to 7e-23

refinement iteration 3

residual increased to 7e-23 (discarding)

solver returned with residual 7e-23

spectrum: 6.9e-02..6.2e+00 (positive definite)

topology 1/1

integrating 1+1+1 distinct blocks

energy -4.27e-15 / e+6.5 and decreasing

minimize 100%

converged in 14 steps to residual 3.3e-11

nonlinear.png